Signal output indication Single channel signal output The output effective signal is low level When there is sound,output low level and the signal lights Can be used for Acoustic control light; give sound and light alarm working with Photosensitive sensor
Specifications: Size: approx. 32mm*17mm*15mm(length*width*height) Main Chip: LM393, Electret condenser microphone Working Voltage: DC 4-6V Color: Blue Net Weight: 3g Note: The Maximum induction distance is 0.5M